Edward knapp



(No Model.)

B. KNAPP.

RULING MACHINE GATE.

No. 329,458. Patented Nov. 3, 1885.

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ilNiTED STATES ATENT OFFIC.

EDlVARD KNAPP, OF ST. LOUIS, M ISSOURI, ASSIGNOR OF ONE-HALF TO GEORGE D. BARNARD, OF SAME PLACE.

RULlNG-MACHINE. GATE.

EiPECIPICATION forming part of Letters Patent No. 329,458, dated November 3, 1885.

Application filed May 8, 1885. Serial No. 164,839.

To all whom it may concern.-

Be it known that I, EDWARD KNAPP, of St. Louis, Missouri, have made a new and useful Improvement in RulingMachine Gates, of which the following is a full, clear, and exact description.

In ruling paper this difficulty is experienced: the sheets to be ruled are often not out squarely at their ends, and it becomes necessary to adjust the gate to suit the angle of the sheet, and when once adjusted the supervision must be continued, for the angle of the sheet ends may change, and in practice is liable to change at irregular intervals, and if the gate is not promptly readjusted with every change in the sheets the ruling is incorrectly done and the paper spoiled. To obviate the need of such superintendence and to provide a self-adjusting gate is the aim of the present improvement.

The annexed drawings, making part of this specification, exhibit only that portion of a ruling-machine that is essential to an understanding of the improvement.

Figure 1 is a view in perspective of the gate detached from the supporting-arm. Fig. 2 is a plan of the gate. Fig. 3 is a section on the line 3 3 of Fig. 5. Fig. 4. is a cross-sectional View of the gate, and Fig. 5 is a plan showing the improved gate in position. The set-screw for holding the gate in the block is not shown.

The same letters of reference denote the same parts.

A, Fig. 5, represents that portion of a ruling-machine with which the gate is more immediately connected. It is of the customary form, and is operated in the customary manner, saving as modified by the improvement in question.

B represents the bar or shaft, to which the gate 0 is attached.

The principal feature of the gate 0 is pivoting the part c, which comes in contact with the sheets being ruled, in the holder 0 so that the part 0 can be swung horizontally and to a sufficient degree for the purpose in view. To this end the part c, in prac- (N0 model.)

tice a light strip, substantially as shown, is,

by means of the set-screw 0, held in the block 0 which in turn is journaled at c in the holder 0'.

The holder 0 consists, mainly, of the crossbar 0 the adjustable stops 0 c and the arm 0 The stops 0 are in the form of a screw, provided with the head 0 and the shoulder c", which come, respectively, upon opposite sides of the part c, and according to the position of the stop in the cross-bar is the limit of the vibration of the part c. If the stop is screwed farther into the cross-bar, the part 0 can be swung through a longer are, and if the stop is unscrewed so as to bring the shoulder farther away from the cross-bar, the part 0 cannot be swung so far, and by unscrewing the stops so as to bring them abreast the journal 0*, as in Fig. 2, the part 0 can be held rigidly in the holder 0.

The holder 0, carrying the part a, can be made adjustable toward and from the bar B, and preferably as follows: The arm 0 is slotted at 0 An arm, 0, is screwed to the bar 13. The arm 0 is passed onto the arm a, and by means of the clamp-screw c the two arms 0 c are fastened together, and according to the position of the arm 0 upon the arm 0 is the position of the part 0 with reference to the bar B.

Fig. 5 illustrates the operation of the improvement. The forward edge, d, of thesheet D is supposed to be out of square with the side d. As the edge encounters the part c, the part 0 turns on its pivot until it coincides with the edge (1, after which it rises and falls in the ordinary manner-that is, the part c is sufficiently light and is so sensitively pivoted as not to offer any obstruction to the sheet until the entire edge of the sheet bears against the part.

The part0 may be termed the gate propo er.

I desire not to be limited to any special mode of adjusting the gate in its holder so that it shall swing horizontally, as described. The method shown, however, is considered the most desirable.

I claim- 3. A ruling-maiehine gate pivoted in its 1. The combinatioii'of the pivoted part a; holder to swing horizontally, as described. the holderp, the arm a, and the bar B, sub- Witness my hand. stantially as described.

5 2. The combination of the pivoted part c Witnesses:

and the holder 0, having the stops a, substan- G. D. MOODY, tially as described. J. W. HOKE.

EDWARD KN APP. 

